Electrical outlet-box.



L No. 778,693. PATENTED DEG. 27, 1904.

E. W. MULLER.

ELECTRICAL OUTLET BOX.

APPLICATION FILED APR. 23, 1903.

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- E. W. MULLER.

ELECTRICAL OUTLET BOX.

APPLICATION FILED APR.23,1903.

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HIS ATTOR NEYS UNITED STATES Patented December 27, 1904.

PATENT OEEIcE.

ERNEST W. MULLER, OF BROOKLYN ,NEIV YORK, ASSIGNOR TO I-IUBFJRT KRANTZ,OF BROOKLYN, NEW YORK.

ELECTRICAL OUTLET-BOX.

SPECIFICATION forming part of Letters Patent No. 778,693, dated December27, 1904.

Application filed April 23, 1903. Serial No. 154,013.

To all whom it may concern:

Be it known that l, ERNEs'r W. MULLER, a citizen of the United States ofAmerica, residing in the borough of Brooklyn, in the county of Kings,State of New York, have invented an Electrical Outlet-Box, of which thefollowing is a specification.

This invention relates to outlet-boxes for electric wiring, and has forits object to provide an improved cover for said boxes provided withmeans for rigidly supporting and carrying a lamp-bracket or the like.

In the accompanying drawings, Figure 1 is aface view of my outlet-boxand cover. Fig. 2 is a section on line a b, Fig. 1; and Fig. 3 is asection on line 0 d, Fig. 1, witha wall-bracket in position.

B is an outlet-box, which in the present case is shown as circular witha flaring edge f. The box is secured in position in the ordinary mannerin the wall or ceiling, and the electric wires 1 2 are brought into theinterior of the box through couplings O O, which secure the box and theconduit-pipes together. At various places along the flared edge lugs 3are "formed, and these lugs are tapped.

The cover lis formed disk-like with a beveled rim 12, adapted to fittightly into the flared rim f of the box. An elongated central opening 5is formed in the cover, with a raised flange 6 around the opening andprojecting outwardly. A bridge 7 of metal, is formed across thisopening, dividing it in two. The outer rim of the cover is recessed toform a circular flange 8 around its periphery. To secure the cover inplace on the box, the beveled rim of the cover is fitted into the flaredrim of the box, and washers W, secured by screws .9 to the lugs 3,securely hold the cover in place by bearing on the recessed flange 8 ofthe cover. In the metal bridge 7 I secure an insulated threaded nipple10 by any suitable means. I have shown the nipple as having an extendingshank 11, passing through an opening in the bridge part, insulated fromit by insulating-washers 'w w, and a bushing 14:, riveted at its endagainst a metal washer w.

In Fig. 3 the plaster is seen to surround the box, extending up to theplane of the outer edge of the flange 6. The wires 1 and 2 are 5 passedthrough the opening and are thus in position for whatever service may berequired of them, while the screw-nipple can readily be gotten at toattach a bracket or the like.

In Fig. 3, S is a socket secured to a tube r, having a threaded end andan opening 0 in its wall near its base for the two wires y, leading tothe lamp-terminals in the socket. An internally-threaded bushing T isscrewed onto the nipple 10 and the end of the tube r, thus serving tosecure the bracket to the outlet-box. A canopy K of usual constructionserves to hide the connected ends of the wires 1 0c and 2 3/ and alsothe opening 5 of the box. 5

I claim as my invention- 1. An outlet-box having a flaring rim, a coverwith beveled edge to fit therein and means for carrying a bracket onsaid cover, substantially as described.

2. An outlet-box having a flaring rim, a beveled cover to fit thereinand a nipple secured to said cover and insulation between the nipple andcover, substantially as described.

3. An outlet-box having a circular flaring mouth, a circular cover,having a beveled rim and adapted to lit into said mouth and a threadednipple secured to said cover and insulated therefrom, substantially asdescribed.

a. An outlet-box having a flaring mouth, a cover having abeveled rimfitting therein, lugs on the box and a screw and washer secured therein,said washer overlapping said cover to hold it in place and an insulatednipple carried by said cover, substantially as described.

In testimony whereoflhave signed my name to this s peciflcation in thepresence of two subscribing witnesses.

ERNEST W. MULLER.

\Vitnesses:

HAYWOOD PARKER, LOUIS M. BOURNE.

